NC0034452_Wasteload Allocation_19860527

NPDES DOCYNENT :MCANNINO COVER SHEET
IMP
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OMNI
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NPDES Permit:
NC0034452
Willow Creek WWTP
Document Type:
Permit Issuance
Wasteload Allocation
ki4t.1i4'C
Authorization to Construct (AtC)
Permit Modification
Speculative Limits
Report
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date:
May 27, 1986
This document its printed on reuse paper - ignore any
content on the reYerse tside

Facility Name:
Existing 12)
Proposed O
Design Capacity (MGD):
lfow
NPDES WASTE LOAD ALLOCATION
C reac- Bus -id r -5 ) /H L..
Permit No.:
0.0q
Nc..00 y52.
Pipe No..
OO 1 County: b0.W•ds0 r1
Industrial (% of Flow): 0 Domestic (% of Flow):
Receiving Stream: At,(0*s Cr gt.k
Reference USGS Quad: b 115 Ne (Please
/iq " plan' w Q.s1
(Guideline limitations, if applicable, are to be listed on the back of this form.)
Class: w5 -111 Sub -Basin:
attach) Requestor:
/06
0 3070-7
L.t sa Ct-eiLeL-101% _ Regional Office OSA C
Design imp.: c 5
7Q10 (cfs)
Location of D.O. minimum (miles
Velocity (fps) : 10,/07 .
Drainage Area (mi2): ) p,/1
Winter 7Q10 (cfs) 3.347
below outfall): C91
Kl (base e, per day):
Avg. Streamflow (cfs) :
30Q2 (cfs)
Slope (fpm )
/c,a
0,39 K2 (base e. Der day) : p7. 7 9
Effluent
Characteristics
Monthly
Average
,
Comments
.L3'065
/ 8 /C
,` u +vrr-e.�,
AJN3 •-Ar
// ; ,/.p
,
T"eca/ ce,/ m
f04
Y 1,O
_0,,oil
1 �u
Origin
Revised Al
O
0
O
Prepared By: S
locatiop
:°cation
Co ation
Comments:
i-8y
Effluent -
Characteristics
:'onthly
2_verage
Comments
,B00,5
-3 0 0 .60
l cJe„
-4.- ,
/0.6 A%
/UiT
,Jo
5J7 2
7.3.5
3O 7O
�ec�/ Cc,/
'i✓!
/OCR// o/L
,
Reviewed By:
Date : 7/c5'�v

X,
Request No. : 3035
WASTELOAD ALLOCATION APPROVAL FORM
Facility Name : WILLOW CREEK BUILDERS-,INC.
Type of Waste : DOM
Status : EXISTING
Receiving Stream : ABBOTTS CREEK
Stream Class : WSIII
Subbasin : 030707
County : DAVIDSON Drainage Area (sq mi) : 20.17
Regional Office : WSRO 7010 (cfs) : 1.51
Requestor : CREECH Winter 7Q10 (cfs) : 3.34
Date of Request : 30Q2 (cfs) :
Quad : D18NE Average Flow (cfs) : 19.41
RECOMMENDED EFFLUENT LIMITS
: SUMMER WINTER
Wasteflow (mgd) : .04 .04
5-Day BOD (mg/1) : 18 30
Ammonia Nitrogen (mg/1) : 11 NR
Dissolved Oxygen (mg/1) : 5 5
TSS (mg/1) : 30 30
Fecal Coliform (`/100ml): 1000 1000
pH (8U) : 6-9 6-9
COMMENTS
ecommended by
Reviewed by:
Tech. Sup°ort Supervisor
Regional Supervisor
Permits & Engineering__
RECEM
MAY 20 .°°���
°
Division (J
Emftnmeftl
wbowedeffiwow
0-al J �
Date �U�V��*,
_
Date__
Date

LaatzL3
Q2 = 0,04 mc.D
41-C%;t ,a�
+
A
l�„ = c
tOL, 3.31(
O,i
w
0,3
D =Za<<
CDA= i et 4t
'4452t 0y = 1, 5 1
z. 3,344
0A=Z�.3
x _ a..6•r
4.6:e =�-= 3.3
Dq<4,1S,YQA 9.3
6Rr�SS

1{
tom. o.�.
CQ6.
11.
C,?0 03 I
C>O L�
cos--R,
agQ LOw-Q-0 o
CQ�-�O
L DO
-2otos
ac(o
c
(DATRu
d . 5 O.3 - 4 °ry d rLa.
v, o4 .003
(0 110
5 5
o,c 0,03 0.0-1-
otaa d.t Data
1,26 0,43 6.01
IQ,a ta,a ►a,�
1Lit4- -
3.j3
li;.��
` z g0(019,12- 3.3y - 3, 2.3 = D-Q
4-4-o`- CotcJ _ 10P.
0.s w---
R3 co, o 01,5`-1 - l���l.f _ O `4 3
o.3 �.
Ott OAT. o
�1. - t� s� D•q
T, o,os-o.c
o•S
1, 5 4 = 0.03
�3 oto0 -C = 3.31 -l
3• t- - 3.34-

MODEL RESULTS
DISCHARGER WILLOW CREEK BUILDERS,INC.
RECEIVING STREAM ABBOTTS CREEK
THE END D.O. IS
THE END CBOD IS
7.98 MG/L..
2.28 MG/L
THE END NBOD IS
0.00 MG/L
THE D.O. MIN. OF SEGMENT 1 IS 5.07 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT M I LEPO I•NT 0.10
WHICH IS LOCATED IN REACH NUMBER 1
THE WLA FOR SEGMENT 1 REACH
THE WLA FOR SEGMENT 1 REACH
THE REQUIRED EFFLUENT D.O. IS
THE WASTEFLOW ENTERING SEG 1
THE WLA FOR SEGMENT 1 REACH
THE WLA FOR SEGMENT 1 REACH
THE REQUIRED EFFLUENT D.O. IS
THE WASTEFLOW ENTERING SEG 1
THE WLA FOR SEGM
THE WLA FOR SEGM
THE REQUIRED EFF
THE WASTEFLOW EN
THE WLA FOR SEGM
THE WLA FOR SEGM
THE REQUIRED EFF
THE WASTEFLOW EN
ENT 1 REACH
ENT 1 REACH
LUENT D.O. IS
TERING SEG 1
ENT 1 REACH
NT 1 REACH
�UENT D.O. IS
TERING SEG 1
1 IS 62 MG/L OF CBOD
1 IS 0 MG/L OF NBOD
6 MG/L
REACH 1 IS .001 MGD
2 IS 0
2 IS 0
0 MG/L
REACH 2
MG/L OF CBOD
MG/L OF NBOD
IS 0 MGD
3 IS 62 MG/L OF CBOD
3 IS 0 MG/L OF NBOD
5 MG/L
REACH 3 IS .04 MGD
4 IS 62 MG/L OF CBOD
4 IS 0 MG/L OF NBOD
5 MG/L
REACH 4 IS .003 MGD

*** MODEL SUMMARY DATA ***
Discharger : WILLOW CREEK BU I LDERS q I NC . Subbas i n : 030707
Receiving Stream : ABBOTTS CREEK Stream Class: WSIII
7010 : 1.51 Winter 7010 : 3.34
Design Temperati..ire : 25 °C 30O2 :
ILENGTHISLOPE I
I mile 1ft/©i
VELOCITY !DEPTH K1 I K1 I K2 1 K2 1 KN I KN I KNR I KNR
fps I ft 1 /day 1320° I /day 1 320° I /day 1220' 1 /day 1320°
Segment 1 I 0.101100.00►
Reach 1 I
0.100 10.09 1.26 1 1.00 120.07 1 18.001 0.00 1 0.00 1 0.00 1 0.00
Segment 1 ► 0.501 12.201
Reach 2 1
0.123 1 0.90 0.48 1 0.39 1 3.00 1 2.691 0.00 : 0.00 1 0.00 1 0.00
Segment 1 : 0.30: 12.20:
Reach 3 I
0.127 1 0.91 0.49 1 0.39 1 3.12 1 2.791 0.00 1 0.00 10.00 1 0.00
: $ I I 5
Segment 1 1 2.501 12.201
Reach 4 1
0.130 10.93 : 0.49 1 0.39 1 3.19 1 2.861 0.00 1 0.00 1 0.00 1 0.00
1 1 : 1
*** INPUT DATA SUMMARY ***
1 flow 1 CBOD 1 N80D 1 D.Q. 1
I cfs 1 mg/1 1 mg/1 I mg/1 1
Segment 1 Reac 1 1 1
Waste I 0.002 1 62.000 0.000 1 6.000 1
Headwaters: 0.000 1 0.000 0.000 1 0.000 1
Tributary 1 0.000 : 0.000 0.000 1 0.000 1
* Runoff I 0.000 1 0.000 0.000 1 0.000 1
Segment 1 Reac 2 1
Wast 1 0.000 1 0.000 0.000 1 0.000 1
Trib tary 1 1.460 1 2.000 0.000 1 7.560 1
* Ru off : 0.100 1 2.000 0.000 1 7.560 1
Segment 1 Reac
3 1
Waste I 0.062 1 62.000 1 0.000 1 5.000 1
Tributary 1 0.000 1 0.000 1 0.000 I 0.000 1
* Runoff I 0.030 1 2.000 1 0.000 1 7.560 1
Segment 1 Reac 4 I 1
Wast 1 0.005 1 62.000 0.000 1 5.000 1
Trib tary 1 0.000 1 0.000 0.000 I 0.000 1
* Ru off 1 0.070 1 2.000 0.000 I 7.560 I

DISCHARGER
RECEIVING STREAM
WASTEFLOW
SEG NO 1 REACH
1 1 1
1 1
1 1
1 1
1 1
1 1
1 2
I 2
1 2
1 2
1 2
1 2
1 3
1 3
1 3
1 3
1 4
1 4
1 4
1 4
1 4
1 4
1 4
1 4
1 4
1 4
1 4
1 4
1 4
:WILLOW CREEK BUILDERS9INC.
:ABBOTTS CREEK
1 SEG MI 1 DO 1 CBOD 1 NBOD 1 FLOW
1 0.001 6.001 6 2.00 1 0.001 0.00
0.021 5.681 61.051 0.001 0.00
0.04: 5.451 60.121 0 . CSC} 1 0.00
0.061 5.281 59.201 0.001 0.00
0.081 5.161 58.301 0.001 0.00
0. 10 1 5.071 57.41 1 0.001 0.00
0.101 7.561 2.061 0.001 1.46
0.201 7.63 1 2. t )1 1 0.001 1.47
0.301 7.691 1.961 0.001 1.48
0.401 7.751 1 .91 1 0.001 1.49
0.501 7.791 1.871 0.001 1.50
0.601 7.831 1.83: 0.001 1.51
0.601 7.721 4.201 0.00: 1.57
0.701 7.731 4.101 0.00: 1.58
0.801 7.731 4.001 0.001 1.58
0.901 7.741 3.901 0.001 1.58
0.901 7.731 4.071 0.001 1.59
1.101 7.751 3.871 0.001 I .6{_�
1.301 7.771 3.691 0.00: 1 .62
1.501 7.791 3.511 0.001 1.63
1.701 7.811 3.341 0.001 1.64
1.901 7.8 31 3. 181 0.00: 1.66
2.101 7.861 3.031
0.001 1.67
2.301 7.881 2.881 0.001 1.69
2.501 7.901 2.751 0.001 1.70
2.70 1 7.92 1 2.621 0.001 1.71
2.901 7.94 1 2.501 0.001 1.73
3.101 7.961 2.381 0.00! 1.74
3.301 7.981 2.281 0.00: 1.76

^
"
DISCHARGER
RECEIVING STREAM
MODEL RESULTS ---
: WILLOW CREEK BUILDERS,INC.
: ABBOTTS CREEK
THE END D.O. IS
9.92 MG/L
THE END CBOD IS
3.19 MG/L
THE END NBOD IS
0.00 MG/L
THE D.O. MIN. OF SEGMENT 1 IS 5.09 MG/L
THIS MINIMUM IS LOCATED AT SEGMENT MILEPOINT
WHICH IS LOCATED IN REACH NUMBER 1
0.10
THE WLA FOR SEGMENT 1 REACH 1 IS 118 MG/L OF CBOD
THE WLA FOR SEGMENT 1 REACH 1 IS 0 MG/L OF NBOD
THE REQUIRED EFF UENT D.O. IS 6 MG/L
THE WASTEFLOW ETERING SEG 1 REACH 1 IS .001 MOD
THE WLA FOR SEGMENT 1 REACH 2 IS 0
THE WLA FOR SEGMENT 1 REACH 2 IS 0
THE REQUIRED EFFLUENT D.O. IS 0 MG/L
THE WASTEFLOW ENTERING GEG 1 REACH 2
THE WLA FOR SEGMIENT 1 REACH
THE WLA FOR SEG 1 REACH
THE REQUIRED EFFLUENT D.O. IS
THE WASTEFLOW ENTERING SEB 1
THE WLA FOR SEGM
THE WLA FOR SEGM
THE REQUIRED EFF
THE WASTEFLOW EN
ENT 1 REACH
ENT 1 REACH
LUENT D.O. IS
MG/L OF CBOD
MG/L OF NBOD
IS 0 MGD
3 IS 118 MG/L OF CBOD
3 IS 0 MG/L OF NBOD
5 MG/L
REACH 3 IS .04 MOD
4 IS 118 MG/L OF CBOD
4 IS 0 MG/L OF NBOD
5 MG/L
REACH 4 IS 3.000001E-03 MOD

*** MODEL SUMMARY DATA ***
Discharger WILLOW CREEK BUILDERS a I NC . Subbas i n 030707
Receiving Stream 4 ABBOTTS CREEK Stream Class: WS I I I
7010 1.51 Winter 7010 : 3.34
Design Temperature d 15 °C 3002
!LENGTH:SLOPE
1 mile 1ft/mi
VELOCITY DEPTH 1 K1 1 K1 1 K2 1 K2 1 KN 1 KN KNR KNR
fps 1 ft 1 /day 1 220° 1 /day 1 220° lday 1 220° 1 /day 1 220° 1
Segment 1 1 0.101100.00
Reach 1 1 1
0.100 1 0.09 1 0.79 1 1.00 116.14 18.00 0.00 1 0.00 1 0.00 1 0.00 1
Segment 1 1 0.501 12.20
Reach 2 1
0.222 1 0.99 1 0.32 1 0.41 1 4.38 1 4.881 0.00 1 0.00 1 0.00 1 0.00 1
Segment 1 1 0.301 12.201
Reach 3 1 1
0.227 1 1.00 1 0.32 1 0.41 1 4.48 1 4.99 0.00 1 0.00 1 0.00 1 0.00 1
Segment 1 1 2.501 12.201
Reach 4
0.233 1 1.02 1 0.33 1 0.41 1 4.59 1 5.121 0.00 1 0.00 1 0.00 1 0.00 1
*** INPUT DATA SUMMARY ***
1 Flow 1 CBOD 1 NBOD 1 D.O. 1
1 cfs 1 mg/1 1 mg/1 1 mg/1 1
Segment 1 Reach 1 1
Was 1 0.002 1118.000 1 0.000 1 6.000 1
Hea waters! 0.000 1 0.000 1 0.000 1 0.000 1
Tri utary 1 0.000 1 0.000 1 0.000 1 0.000 1
* R noff 1 0.000 1 0.000 1 0.000 1 0.000 1
Segment 1 Rea h 2 1
Was e 1 0.000 1 0.000 1 0.000 1 0.000 1
Tri utary 1 3.230 1 2.000 1 0.000 1 9.200 1
* R noff 1 0.220 1 2.000 1 0.000 1 9.200 1
Segment 1 Rea:h 3 1
Was e 1 0.062 1118.000 1 0.000 1 5.000 1
Tri utary 1 0.000 1 0.000 1 0.000 1 0.000 1
* Runoff 1 0.100 1 2.000 1 0.000 1 9.200 1
Segment 1 Reach 4 1
Was e 1 0.005 1118.000 1 0.000 1 5.000 1
Tri utary 1 0.000 1 0.000 1 0.000 1 0.000 1
* R noff 1 0.160 1 2.000 1 0.000 1 9.200 1

•
DISCHARGER
RECEIVING STREAM
WASTEFLOW
1 SEG NO 1 REACH
9. 1 1
1 1
1 1 1
1 1 1
1 1 1
1 1
1 2
1 2
1 2
1 1 2
1 1 2
1 1 2
1 1 3
1 1 3
1 1 3
1 1 3
1 1 4
1 1 4
1 1 4
1 1 4
1 4
1 1 4
1 1 4
1 1 4
1 1 4
1 1 4
1 1 4
1 1 4
1 1 4
:WILLOW CREEK BLI I LDERS o I NC .
ABDOTTS CREEK
1 SEG MI 1 DO 1 CBOD 1 NBOD 1 FLOW
1 0.001 6.001 1 18 „ 00 1 ° . oo 1 0.00
0.021 5.721 116.861 0.001 0.00
0.041 5.491 115.731 0.001 .0.00
0.061 5.321 1 14.61 1 0.00: 0.00
°. o 8 1 5.191 113.501 0.00: 0.00
0.101 5.091 112.411 0.001 0.00
0. 101 9.201 2.051 0.001 3.23
0.201 9.291 2.031 0.001 3.25
0.301 9.381 2.021 0.00: 3.28
0.401 9.451 2.00 1 0.001 3.30
0.50 1 9.521 1 .981 0.00: 3.32
0.601 9.581 1 .961 0.00: 3.34
0.601 9.501 4.081 0.001 3.40
0.701 9.541 4.0 4 1 0.00: 3.41
0.801 9.581 3.99 ► 0.001 3.42
0.901 9.621 3.951 0.001 3.43
0. 90 1 9.611 4. 1 1 1 0.001 3.44
1 . 101 9.671 4.021 0.001 3.47
1.301 9.721 3.931 0.00! 3.50
1.501 9.761 3.851 0.001 3.53
1.701 9.791 3.771 0.001 3.57
1 .90 1 9.821 3.691 0.001 3.60
2.101 9.841 3.611 0.001 3.63
2.301 .9.861 3.541 0.001 3.66
2.50 ► 9.88 1 3.461 0.00: 3.69
2.701 9.891 3.391 0.001 3.73
2.901 9.901 3.32,1 0.00: 3.76
3.101 9.911 3.261 0.00: 3.79
3.301 9.921 3.191 0.00: 3.82